Foot switch



FIG. 1 is a front top and right side perspective view of a foot switch, showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a front view thereof. 

CLAIM The ornamental design for a foot switch, as shown and described. 